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Heading "Power Supply"

Principle of operation and wiring diagram of phase switches
Phase switch: scope and features. Which phase switch is better to choose: automatic or manual. Installation parameters of an automatic phase switch for a three-phase network.

How to connect a three-key switch - wiring diagram
Three-key switch: design features and installation procedure. Three-key switch connection diagram for three bulbs. Connection of wires to the three-key switch. Features of installing a three-button switch through a junction box.

The ratio of the power of incandescent and LED lamps
LED lamp power: converts the power of a conventional lamp to LED. How to calculate the optimal power of LED lamps for different rooms. Comparison of the power of LED lamps and incandescent lamps: why such a difference.

How to connect a time relay: cyclic, mechanical and electronic
Time relay: operating principle, setting, functions, design and connection. Varieties of time relays: with electromagnetic or pneumatic deceleration, with a clock or anchor mechanism. Adjustment of devices with a digital scale.

How to connect an RCD with grounding - scheme for a single or three-phase network
RCD connection diagram in a single-phase network with grounding in a private house. How to connect an RCD to a single-phase network without grounding. The principle of constructing an RCD connection diagram. Will protection work without grounding?

Categories and specifications of machines a, b, c and d
Category D circuit-breaker characteristic: differences between categories. Descriptions and features of the operation of circuit breakers of different classes. Advantages and disadvantages of machines of different categories.

Installation and connection of single-key switches
Single key switch: for flush or open wiring, IP20, IP44 and IP54. Technical characteristics of bipolar single-key switches. How to connect a single-key switch with backlight.

Varieties and scope of heat-resistant wires
Heat-resistant wire: up to 400 degrees, single-core and with heat-resistant insulation. How to choose a heat-resistant wire, depending on the purpose. What maximum temperature can heat-resistant insulation for wires withstand?

How to connect and configure a proximity light switch
Wireless switch: operating principle, wiring diagram. Programming and reprogramming of proximity switches. What you need to pay attention to when choosing a wireless switch.

The concept and types of electrical distribution panels
Electrical panel: built-in, outdoor, metal and low current. Varieties of apartment electrical panels. Classification of distribution switchboards: according to purpose, materials of manufacture and place of installation.

How to choose an electric energy storage device for a private house
Home energy storage in the event of a power outage. How long can an energy storage device work autonomously. What you need to pay attention to when choosing an uninterruptible system for a private house or apartment.